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3 years ago

50 points AND brainliest hurry!!

Mathematics

2 answers:

nikitadnepr [17]3 years ago

7 0

On the left side their is 3 green boxes with "x" inside of them. We can add them together (x + x + x = 3x). Their is also 2 red boxes with "-1" in them. We can combine them (-1 + -1 = -2).

On the right side their is 2 green boxes with "x' inside of them. We can add them together (x + x = 2x). Their is also 4 yellow boxes with "1" inside of them. We can combine them together (1 + 1 + 1 + 1 = 4).

Now, we have 3x + (-2) and 2x + 4.

We can combine them to be 3x + (-2) = 2x + 4 (Option D is the correct answer)

______

Best Regards,

Wolfyy :)

maksim [4K]3 years ago

6 0

Answer:

3x +(-2) = 2x + 4

Step-by-step explanation:

green sticks represents positive 3x and red boxes represents negative 2 since it's a equation modeled on adding it is shown as 3x+(-2) = 2x+4

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Find the area of the figure to the nearest hundredth.<br><br>

marysya [2.9K]

Answer:

51.26 ft

Step-by-step explanation:

First find the area of the triangle:

a=1/2 base times height

a=(1/2)(6)(4)

a=12 ft

Now find the area of the circles:

a= pi times radius squared

a= pi times 2.5 squared

a=19.63 ft

19.63 + 12 = 31.63 ft

5 0

2 years ago

Pleaseee help i need this to finish my work due tomorrow

yan [13]

Answer:

Step-by-step explanation:

11x+13=90

11x=77

x=7

49-9=40

4 0

3 years ago

Read 2 more answers

PLEASE HELP! WILL MARK BRAINLIEST!!

Alecsey [184]

Answer:

The y-intercept is (0,1). The x values at the horiz. intercepts are:

{ (-3+√5)/2, (-3-√5)/2 }. Graph is that of a parabola that opens down.

Step-by-step explanation:

It'd be helpful to rewrite f(x) = 3-x2+3x-2 with the powers of x in descending order and using " ^ " to denote exponentiation:

f(x) = -x^2 + 3x -2 + 3, or

f(x) = -x^2 + 3x + 1

y-intercept: let x = 0. Then f(0) = 1. The y-intercept is (0,1)

x-intercepts: let y = f(x) = 0 = -x^2 + 3x + 1. Let's use the quadratic formula with a = -1, b = 3 and c = 1 to determine the roots of this polynomial. The discriminant, b^2-4ac, is 9-4(1)(1), or 5.

Thus, there are two real, unequal roots. They are:

-3 plus or minus √5

x = ---------------------------------

or { (-3+√5)/2, (-3-√5)/2 }

These are your two horizontal intercepts, where the function is zero.

Because the coefficient -1 of the x^2 term is negative, the parabola representing this function opens down.

8 0

3 years ago

Tony separates a number of paintbrushes, x, into 3 equally sized groups. He claims that this is the same as making a group 1/3 t

DochEvi [55]

Answer:

Size of each group = $\frac{x}{3}$

Step-by-step explanation:

Total number of paint brushes = x

Since each the three groups are equally sized, to get the number of paintbrushes in a group, we will have to divide the total number of paint brushes by 3

∴ We have, number of paint brushes in a group = $\frac{Total number of paintbrushes}{3}\\$

= $\frac{x}{3}$

this is also the same thing as saying $\frac{1}{3}$ × $\frac{x}{1}$

This shows that the size of the new group is the same as $\frac{1}{3}$ the size of the original group

4 0

3 years ago

Four times the first of three consecutive even integers is six more than the product of two and the third integer. Find the inte

sesenic [268]

First integer = x

Second integer = x + 2

Third integer = x + 4

Since four times the first integer equals six more than the product of two and the third integer.

4x = 6 + 2(x + 4)

4x = 6 + 2x + 8

2x = 14

x = 7.

Hence,

First integer = x = 7

Second integer = x + 2 = 7 + 2 = 9

Third integer = x + 4 = 7 + 4 = 11.

hope this helps

8 0

3 years ago